Streptococcus pneumonia is the leading cause of bacterial pneumonia. It can enter your lungs through inhalation or through your bloodstream. There is a vaccination for this type. Haemophilus influenzae is the second most common cause of bacterial pneumonia.
The droppings are similar in color to the wood residue that the insects spill as they eat. Subterranean termite droppings are soft and used in constructing nests, whereas drywood termite droppings are hard and look like piles of sawdust, according to Extension.org.
The liquid drop model assumes that the protons and neutrons (i.e. nucleons) are all thrown together without any specific internal structure or bonding arrangements. Think marbles in a bag like this image. It is called the âliquid dropâ because it assumes surface tension and bulk effects.